Answer:
P = d g h pressure due to density of liquid of height h
d1 g h1 = d2 g h2 since P1 equals P2
d1 h1 = d2 h2 and the density of Hg is 13.6 times that of water
h2 = (d1 / d2) * h1 = 13.6 * 70 cm = 952 cm or 9.52 m
Which one if you want independent variable meaning that means variable (often denoted by x ) whose variation does not depend on that of another.
An example of something that is not a proton would be an electron. It has a negative charge and has a charge of 1.6X10^-19 Coulombs.
He should a step-up transformer with k=220/120=1.83 so output coil must have 240*1.83=440 turns
